Vehring [27] also explained that the particle sizes of the sample were influenced by the fluid flow (air or liquid), and
when the inlet temperature was the same, a high feeding rate (3.0 b
6.0 b 9.0 g/min) caused an increase in the Eudragit RS 30D® particle diameter
(12.3 b 16.7 b 24.4 m) during processing. Also, differences in the
particle size and morphological properties were observed via SEM [28].